Apparatus for transmitting the firing to the charge in projectiles of elongated shape



- 1,531,716 Y THE FIRING TO THE OF ELONGATED SIZAPE 1924 March 31, 1925.

L. E. REMOND 5 FOR TRANSMITTIN IN PROJEGTILES APPARATU CHARGE Filed Feb.5

Patented Mar. 31, 1925.

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LEON ECMEILE REMONDY, or rams, FRANCE.

'arraaarus ron TRANSMITTING THE rrnrnc- TO THE CHARGE rn'rnoancrrnns orELONGATEID snare.

Application filed February 5, 1924;. Serial No 690,814.

To all whom it may concern:

Be it known that I, LEON EMILE Ri l- MOICDY, a citizen of the Republicof France, resident of Paris, France, have invented new and usefulImprovements in Apparatus for Transmitting the Firing to the Charge inProjectiles of Elongated Shape, which is fully set forth in thefollowing specification.

The present invention has for its object a mode of application of thetype of fuse described and illustrated in U. S. Patent No. 1359,0755, toprojectiles in which the nose or front part is greatly elongated eitherby reason of the actual shape of the projectile or by the addition tothe latter of an extension or of a ballistic cap. According to theinvention, a tubular axial conduit is provided in the elongatedprojectile proper, the extension or ballistic cap, as the case may be,and this conduit is provided at its forward extremity with a primaryfuse constructed to operate in accordance with the aforementionedpatent, that is, by rammingin and inertia, which fuse transmits thefiring action to one or several similar or relay fuses, the last fuse ofthe series being the normal fuse of the projectile and being alsoarranged so as to operate by ramming-in, or preferably by ramming-in andinertia.

According to one practical form of construction ofthe invention, theprimary fuse at the head, which transmits the firing to the relay fusesand to the normal fuse, may be housed in a removable tube which, forexample by the simple fitting of its rear extremity, can be fined orsecured on or within the nose of the projectile proper, for example onor in the fuse carrier of the latter.

In all cases besides the auxiliary front fuse, the arrangement comprisesthe normal percussion system for ignition of the charge, the operationof this latter system by ranr ining-in and inertia being assured by thepressure of the gases or by the firing of the initial fuse, without theinterposition of any auxiliary powder charge, either directly or throughthe intermediary of one or several similar relay fuses.

Various constructional forms of the invention are represented for sakeof example in the accompanying drawings, in which Fig. 1 shows insectional elevation the application of the invention to a projectile ishoused the normal fuse C whose opera tion causes the firing of thecharge. This fuse is adapted to operate by ramming-in and inertia, andto secure this effect should be arranged as described in my Patent No.1,459,07 5 aforesaid, that isto say, so as to operate by rannning-in ofa movable carriage containing the entire firing mechanism, saidramming-in being brought about by the simple destruction of a retainingmeans such as a pin and being adapted to cause one of the elements ofthe mechanismwhich is free in the said carriage to be projected byinertia upon the other element which is rigidly connected with saidcarriage.

an elongated supplementary tubular part D which serves at its outer partas a housing for an initial front or primary fuse which is preferably ofthe type shown and described in my aforementioned patent. That is tosay,-said primary fuse should comprise a movable carriage G which issecured upon the tubular extension D, for example by means of a pin 9,said movable carrier containing the whole of the firing mechanism, towit, a striker G rigidly connected to the envelope or carriage G, apriming cap G freely mounted in the envelope or carriage, a separatingspring G and a washer with its projections G* immovably held to the rearof an abutment d of the tube D, the ramming-in of the carriage beingrendered possible by the sliding of the slots G of the envelope upon theprojections of said washer G The supplemental tubular part D ispreferably made removable, its lower extremity D being arranged in sucha manner as to be capable of being secured to the fuse carrier or to anyother part of the fuse proper by screw-threads, a bayonet-joint, or anyother suitable retaining means. This arrangement allows at will thefiring of the projectile either with or without the extension, this lat-In the example of Fig. 1, there is provided v ter comprising a firingmechanism which coacts with the normal striker of the projectile whenthe supplementary part in question is utilized. It will-be seen that theshock of a projectile provided with such an extension, or the collisionof this projection with an obstacle, however feeble it may be,instantly. causes the operation of the extra-sensitive;

front or primary fuse Gby ramming-in and inertia. The firing of thisfuse is transmit ted to the normal fuse G which operates likewise'bybeing rammed-in under the pressure of the gases and inertia,the carriage0 being driven toward the interior of the projectile,

' shearing the retaining pin 0 and causing the .ignition'of the prlmingcap of the fuse C ample of the application of the invention to aprojectile provided with a ballistic cap.

I The cap E can be secured in any suitable way, as-by a disk Ebetweenthe body ofthe projectile and the fuse carrier B. The forward end of theballistic cap E is secured to the tube D in any suitable manner, suchscrew-threads, bayonet-joint or otherwise, and the tube B is simplyfitted at its rear e1:- tremity in the fuse carrier B as shown.

As in the example of Fig. 1, the tube I) is arranged to receive theinitial or primary fuse Grand the intermediary or relay fuse or fusesbetween the primary fuse and the normal fuse C.

' Having thus particularly described and ascertained the nature ofmysaid invention and the manner in which the same is to be performed,what I claim is l. A projectile provided with a forwardly extendintubular member, and a plurality of fuses arranged in said tubular memberone in front of another, each of said fuses being operable only byramming-in and in ertia, whereby each fuse upon operation will actuatethe one next in its rear.

2. A projectile provided with a gas-directing forwardly extendingtubular member, and a plurality of fuses 111 said member one in front ofanother, each of said fuses being operable only by ramming-in andinertia, whereby the gases of explosion of each fuse will actuate thefuse immediately in its rear. 3. A projectile, a fuse carrier mounted inthe nose thereof, a ballistic cap secured to the forward end of theprojectile, a tubular member extending from said fuse carrier to theforward part of said cap, a ramming-in and inertia actuated fuse in saidcarrier and a similar fuse in said tubular member forward of saidfirst-mentioned fuse. I In testimony wl'iereof I have signed thisspecification.

LEoN EMILE BEMONDY.

